Churn.



PATEN'TED JUNE 20, 1905.

L. G. MoOARTY.

CHURN.

APPLICATION FILED OUT. 6,1904.

Witnesses UNITED STATES Patented June 20, 1905.

PATENT EEICE.

LEWIS O. MoOARTY, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE- HALF TO JAMES S. KLINGER, OF INDIANAPOLIS, INDIANA.

CHURN.

SPECIFICATION forming part of Letters Patent No. 792,721, dated June 20, 1905.

Application filed October 5, 1904:. Serial No. 227,243.

To (all whmn it may concern:

Be it known thatI, LEWIS O. MoOAR'rY, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana,h ave invented a new and useful Churn, of which the following is a specification.

This invention relates to churns, and has for its object to improve the construction and increase the efliciency of devices of this character, and provide a simple means whereby the temperature of the cream may be controlled.

With these and other objects in View, which will appear as the nature of the invention is better understood, the same consists in certain novel features of construction, as hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, and in which corresponding parts are denoted by like designating characters, is illustrated the preferred form of the embodiment of the invention capable of carrying the same into practical operation, it being understood that the invention is not necessarily limited thereto, as various changes in the shape, proportions, and general assemblage of the parts may be resorted to without departing from the principle of the invention or sacrificing any of its advantages.

In the drawings, Figure 1 is a longitudinal sectional elevation. Fig. 2 is a section on the line 2 2 of Fig. 1. Fig. 3 is a perspective view of one of the dasher-blades detached. Fig. 4: is a sectional detail illustrating the manner of connecting a thermometer with one of the side walls of the cream-receptacle.

The improved churn embodies a body or cream-receptacle having an arcuate bottom, a contracted neck or mouth, and inwardlycurved sides, together with a removable perforated division-plate centrally disposed relatively to the body, a shaft carrying a twopart vibratory dasher operative on opposite sides of the said plate, and a receptacle for a heating or cooling medium.

The body or cream-receptacle is formed with sides and 1 11, connected by a bottom 12, and sides 18 and 14, which curve inwardly from the bottom to the top of the body, as indicated by and 16. The bottom of the body is formed on the are of a circle of which the dasher-shaft is the center, and the sides of the body are formed on arcs of a circle the center of which is disposed below the median line of the division-plate, whereby the sides converge inward toward the plate, and thereby cause the cream to curl upon itself, resulting in increased agitation, and thus an acceleration of the operation of churning.

The side members will preferably be of.

wood and the bottom and ends of a single strip of sheet metal, as represented, but may be constructed entirely of wood or entirely of metal, if required.

Surrounding the upper portion of the creamreceptaele is a binder member 17, extending above the main Walls of the same and forming shoulders to support the cover 18. Recesses 19 20 are formed in the upper edges of the side members 10 11 to receive the ends of a transverse shaft 21, the shaft having an operating-handle 22 extending through an aperture 23 in the cover 18. Depending from the shaft 21 are inclined arms 24: 25, having perforated. dasher members 26 27 upon their lower ends. Vertical guide-grooves 28 29 are formed in the inner faces of the side members 10 11 to receive and support a perforated division-plate 30, the latter being thus maintained centrally of the receptacle and transversely of the same, the dashers operating upon each side of the division-plate. By this arrangement it will be obvious that as the handle 22 is reciprocated the dasher members 26 27 throw the cream alternately against the opposite sides of the division-plate and through the apertures in the same and also throw the cream alternately against the inner surfaces of the inwardly and upwardly curving portions 15 16, causing the cream to rise thereon and be overturned upon the body of the cream below, thus very materially increasing the agitation and correspondingly increasing the rapidity of the separation of the butter particles. Each dasher member thus produces a double action upon the cream, one between the dasher and central division-plate, and one between the dasher and the curved surfaces 16, the device thus performing the work of four ordinary dashers in addition to the rolling action produced by the curved surfaces, as above described.

The shaft 21 and its attached dasher members are removable from the receptacle, while the division-plate is also removable, so that the Whole interior of the receptacle will be free from obstructions to facilitate the removal of the butter and the thorough cleansing of the parts.

Attached to the lower portion of the creamreceptacle and extending for a distance up its sides is a jacket 31 for holding a heating or cooling medium to regulate the temperature of the cream. The jacket is open at one end,

as at 32, and provided with a vent-aperture 33 and draw-off tube 34:, while the cream-receptacle is also provided with a draw-off tube 35 for the discharge of the buttermilk or wash- Water.

Legs 36 will be provided for supporting the cream-receptacle.

A thermometer 37 is inserted in one side of the side Walls 11, with the bulb 38 exposed to the interior of the receptacle, so that the cream comes in direct contact with the same to render its action more quickly responsive to slight changes in the temperature of the cream. The bulb is inclosed in the overhang; ing portion 39 of the side wall to protect it from contact with bodies which might destroy it.

Having thus described the invention, what is claimed is r In a churn, a churn-body having a centrallydisposed perforated division-plate, and a shaft supported by the body and carrying spaced perforated dasher-boards for vibration on the opposite sides of the division-plate, the bottom of the body being formed on the arc of a circle of which the longitudinal axis of the dasher-shaft is the center, and the sides of the body being formed on arcs of a circle the center of which is disposed below the median line of the division-plate, whereby the sides converge inward and thereby cause the cream to curl upon itself, a cover for the churn-body, and an operating-handle projecting through the cover and connecting with the shaft.

In testimony that I claim the foregoing as my own 1 have hereto affixed my signature in the presence of two witnesses.

LEWIS C. MoOARTY.

Witnesses:

FRED W, RAssMANN, ELMER WVETZEL. 

